How is arteriography needle checked

One of the X-ray methods of arteriography. The method of filling the pulse with contrast agent to make the arterial system develop is provided. The distribution, number and shape of human arterial system are relatively constant. Angiography is mainly angiography. In order to obtain the best visualization of the artery to be examined, it is hoped that the catheter will be placed as close to the interest artery as possible and the local concentration can be achieved as high as possible after injection of the contrast agent.

According to the position of the catheter tip from the interest vessel, it can be classified into non-selective angiography, selective angiography and super selective angiography. Since the advent of digital subtraction angiography, most arteriography can be performed by DSA.

B-type and Doppler ultrasound, CT, and MRI are also increasingly used to show the arterial system, but these examinations will not replace arteriography in the foreseeable future. Arteriography requires intra - arterial catheterization and is invasive.